Mackenstein “Chromoscope cabinet viewer” for autochromes
aMackenstein "Chromoscope cabinet viewer" for autochromes. Featured in Mackenstein's catalogue: Elegant apparatus made of Mahogany, for looking at 9 x 12 cm format colour views........ a single turn forward of the handle, and one back is enough to change the view..... Quality construction. See period document attached.
MarqueMackenstein "Chromoscope classeur" pour plaques autochromes
MarqueMackenstein "Chromoscope classeur" pour plaques autochromes